Wrought-metal radiator.



Nu'. 634,3l7.

(No Model.)

WETNESSES Patented Oct. 3,` |899. F. A. WILMT.

WRUGHT METAL RDIATR. (Application mea Mm. 1.1, 1899.)

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F.y A. WILMT.

WROUGHT METAL RADIATOR.

(Application tiled Mar. 11, 1899) (No Mode.) 2 Sheets-Sheet 2.

No. 634,3I7. Patented Oct. 3, |899.

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NITED STATES PATENT Fries.

lWROLJGHT-M ETAL RADIATOR.l

SPECIFICATION forming part of Letters Patent No. 634,317, dated October 3, 1899.

Application filed Marcil 11, 1899. Serial No. 708,671. (No model.)

To all whom it may concern.-

Be it known that I, FRANK A. VILMOT, a citizen of the United States,residin g at Brd geport, county of Fairfield, State of Connecticut, have invented a new and useful Wrought- Metal Radiator, (Case A,) of which the following is a specification.

My invention has for its object to provide a radiator made entirely of wrought metal which shall be adapted to take the place of the cast-metal radiators now in general use in steam and hot-water heating systems, my novel radiator being much lighter, much stronger, and much less expensive than castmetal radiators and the material being adapted to be formed to any desired ornamental shape or coniiguration, thus enablingme to produce a neat, graceful, and exceedingly attractive radiator adapted for general use either in private houses `or in public buildings.

With these ends in view I have devised the novel wrought-metal radiator, which I will now describe, referring by letters and numbers to the accompanying drawings, forming part of thisl speciiicatiomin which- Figure 1 is a side elevation of a radiator consisting of six of my novel sections, two of the pipes in the two sections toward the right and the corresponding connect-ions being in section on the line l l in Fig. 2; Fig.2, an end elevation corresponding therewith, legs or bases by which the end sections are supported being indicated by dotted lines in both iigures; Fig. 3, a plan view of one of my novel headers detached; Fig. 4, a detail sectional view on the line 4 4 in Fig. 2; Fig. 5, a similar view illustrating a slightchange in the details of construction; Fig. 6, a detail view, partly in section, the pipes bein g broken away at the center, showing that the upper header may be dispensed with and the upper ends of the pipes closed by caps and also showing a form of lower header in which the collars which receive the pipes are invertedthat'is, turned inward instead of extending upward from the header; Fig. 7 a detail view showing in elevation, partially broken away, an inside lower header and also showing as a modification that the collars which receive the pipes may pass within the pipes instead of the pipes passing within the collars,

as in the other form; and Fig. 8 is a detail view, on enlarged scale, showing the construction of passages through the headers for tierods.

A denotes the pipes of my novel radiator; B, the headers; C, the tie-rods, and D legs or bases. The pipes are of wrought metal; but the details of construction are not of the essence of my invention. I preferably, however, use pipes made from sheet metal, the edges of which are secured together by clencher-joints, as in Patents Nos. 578,799, 578,800, and 578,801, granted to ine March 16, 1897. The legs or bases are preferably made of wrought metal and of any desired shape or configuration. For the sake of clearness I have indicated the bases by dotted lines only. It is simply essential, so far as'my invention is concerned, that the bases and headers be independent of each other and that the bases be so constructed as to receive a header and hold it iirmly. Ordinarily the two end sections only of a radiator will beseated in legs or bases. If the radiator is very long, however, one or more of the intermediate sections may rest in a leg or base. The upper and lower headers may be the same so far as the principle of my invention is concerned; but the exact shape of the headers is of course not of the essence of my invention. For example, in Figs. 1 and 2 I have shown the upper and lower headers as diifering from each other in design, although the principle is the same in both. The essential featu re of my novel header is that it is drawn and pressed to shape from a blank of wrought metal. In practice the blank of metal is cupped and drawn by successive operations to the desired shape, the base or closed end of the cup forming the outer face of the header, as at a. The open end of the cup of metal is flattened and closed in to form collars 10 to receive the pipes, the edges of the metal between the collars being caused to lap past each other, so as to form a lap-joint, as at 11, between the collars, as clearly shown in Figs. 3 and 4.

If preferred, instead o' closing the edges of the open end of the cup upon each other and forming a lap-joint, as in Figs. 3 and'4, independent pieces 12 (see Fig. 5) may be set in between the collars, the inner edges of said pieces 12 forming the inner sides of thc col- IOO lars, as at 12, and the outer edges of said pieces overlapping the edges of the blank from which the header is formed and forming lap-joints, as at 121'.

In Fig. 6 I have illustrated a form of myinvention applicable to steam-radiators in which the upper header is dispensed with and the upper ends of the pipes are closed by caps 29. I have also illustrated in this form as a modification a headerin this instance a lower header-in which the collars 10 instead of extending upward from the header are inverted-zl e., turned inward-said collars receiving the pipes, as in the other form. In Fig. 7 I have illustrated a form in which the collars extend upward from theheadcr, as in Figs. 1 and 2, but are made smallerand are adapted to pass within the pipes instead of receive the pipes within them, as in the other form. The shape of the collars and pipes in crosssection is of course not of the essence of my invention.

In Fig. 3 I have illustrated collars made oval in cross-section to receive oval pipes, which I preferably arrange in each section, as shown in said figure, although, as already intimated, these details of construction may be varied to suit the taste of the designer or the requirements of the trade.

E denotes a main steam or water pipe threaded at its end to engage a threaded sleeve This sleeve is preferably made angular, as shown, to adapt it to receive a wrench by which it may be held while pipe E is being turned to place. Sleeve 13 is secured to a radiator-section, the lower header of which is especially adapted for use as a first section of a radiator by having in its outer side an opening 1st, surrounded by an outwardlyturned flange 15, and by having in its inner side an opening 1G, surrounded by an outwardly-turned flange l 7. Sleeve 13 is secured to a sleeve 1S, which is itself provided with an outwardly-turned flange 10, which engages the inner side of the section. Sleeve 18 is made just large enough to pass through opening 14 and flange l5, flange 19 upon the inner end of said sleeve engaging the inner end of the section, as is clearly shown in Fig. 1. It will of course be understood that these parts are rigidly secured together ordinarily by the process ot' sweating,j so called.

The only difference between the first section and the intermediate sections is that the lower header of each of the intermediate seetions has an opening 1G in each side, each opening being surrounded by a flange 17, and the only difference between the intermediate sections and the last section is that the lower header of the last section has an opening 1G in its inner side only. The mode in which the sections are connected together at the bottom or at both bottom and top, if preferred, is clearlyillustrated in Fig. 1,111 which figure I have shown the sections as connected together at top and bottom, as would ordinarily be the caso in hot-water radiators, but

would not ordinarily be necessary with steamradiators, it being, however, whollyimmatcrial, so far as my invention is concerned, whether the sections vare connected at both top and bottom or only at the bottom and also whether or not upper headers are used at all.

2O denotes sleeves having at their inner ends flanges 2l, adapted to engage the inner sides of the sections, the outer ends of each pair of sleeves 20 abutting against each other.

2 denotes a double-taper sleeve lying within sleeves 20. It will be noted in Fig. 1 that sleeves 2O just pass closely through openings 1G and flanges 17, flanges 2l of said sleeves closely engaging the inner sides of the sections, and that said sleeves also closely engage the double-taper sleeve. After assembling the parts are rigidly secured together in any suitable manner, as by the process of sweating, so called.

The tie-rods which connect the sections to gether to form completed radiators may be passed between the pipes or through the headers, as preferred. Then they are passed through the headers, the headers are provided in both sides with countersunk openings u3.

2l denotes tubes which pass through the headers and are provided at cach end with flanges 25, which engage the countersinks surrounding openings 23, as is clearly shown in Fig. 8.

2G denotes tubes surrounding tubes 24;, the ends of which abut against and support the sides of the section.

It will be clearly understood from Fig. S that the flanges of tubes 24 render it impossible for collapsing of the headers to take place und er any circumstances and that tubes 2G prevent the possibility of outward expansion of the headers.

27 (see Figs. 4 and 5 in connection with Fig. 1) denotes tubes the ends of which abut against contiguous sections and register with tubes 2t, through which the tie-rods pass. These tubes, in connection with the tie-rods and nuts 28 thereon, hold the sections rigidly in place and make the radiator as a whole strong and rigid. This construction thus insures that the radiators while very much lighter than any radiators now in use having an equal amount of radiating-surface will also be very much stronger than other radiators and able to stand a much higher steampressure without danger of either collapsing or bursting.

As above stated, the header is formed by being cupped and drawn from a blank of wrought metal, and, as also stated, the edges of the blank are closed in toward each other. This closing is, however, unequal along the edges of the blank, for the reason that those portions of the edges of the blank which are to form the collars to which the pipes are secured are closed in only to varying extents, as indicated clearly in Fig. Si. The portions of said edges between those portions which IOO IIO

are .to for'm the said collars are, however, closed in to a greater extent to enable the edges to be secured together. Hence the closing inward of the edges of the blank is unequal along said edges.

Having thus described my invention, l clai1ni 1. A radiator-header cupped and drawn from a blank of wrought metal, the edges of said blank being unequally closed inward, portions of said edges being secured together and other portions formed for the attachment of pipes.

2. A radiator-section comprising a series of wrought-metal pipes and a header cupped and drawn kfrom a blank of wrought metal, the edges of said blank being unequally closed inward, portions of said edges being secured together and other portions having the said pipes attached thereto.

3. A radiator-section comprising a series of wrought-metal pipes and a header cupped and drawn from wrought metal and havinga continuous outer face, the edges of said blank being unequally closed inward, portions of said edges being formed with a series of collars to which the pipes are secured and other portions of said edges being secured together.

lt. A radiator-section consisting of a series of wrought-metal pipes, and upper and lower headers cupped and drawn from a blank of wrought metal, the edges of the headerblanks being unequally. closed inward, portions of said edges being formed with collars to which the pipes are attached and other portions of said. edges being secured together by joints between the collars.

5. The radiator-header B cupped and drawn from a blank of wrought metal the edges of said blank being unequally closed inward, portions of said edges being formed into collars lO and other portions between said collars being secured together, substantially as shown for the purposes specified.

6. In a wrought-metal radiator, the coinbination with headers having countersunk openings 23, of tubes 24 having ilanges'which engage the countersinks of contiguous headers and tubes 26 which inclose tubes 24 and the ends of which abut against the sections, whereby collapsing or bursting of the sections is prevented.

In testimony whereof I a'llix my signature in presence of two witnesses.

FRANK A. WILMOT.

Witnesses:

A. M. Woos'rER, S. V. HELEY, 

